SMACK/ URL's Summer Madness was the biggest MC Battle event in history. The card was stacked with some of the best MC's in the world and one of the most anticipated Battles of the evening was between New York's DNA and Detroit's X-Factor. These two lyrical giants put on a performance to be remembered and ended up having on of the best Battles of the night!!! To see more of the worlds best MC Battles log on to WWW.URLTV.TV…